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PERRY G. GARDINER, OF NEV YORK, N. Y.

MACHINE FOR DISENGAGIG RAILWAY-CARv SPRINGS FROM MANDRELS.

Specification forming part of Letters Patent No. B6,9 116, dated March 3l, 185.7..

To cl/ZZ whom, it may concern:

Be itknown that I, PERRY G. GARDINER, of the city, county, and State of New York, mechanical engineer, have invented a new and useful machine for disengaging the cone-mandrel from the conical coil of steel adhering to the mandrel after being formed and coiled in the coding-machine invented by me, and described in my specification for the Letters Pat ent for said machine, and also for turning back into place (or breaking off, as the case may be) the small piece of steel which has been bent nearly to a right angle upon the inner end of the steel plate by the first turn of the mandrel in the aforesaid coiling-machine; andIdo hereby declare the following to be a full and exact description of my said machine and of the manner of operating the same, reference being had to the accompanying drawings, making part of this specication. p

In the drawings, Figure I represents a side view or elevation, Fig. II represents a front view or elevation. Fig. III is a section at the line 2 3. Figs. IV and V are views of the disengaging-spindle.

In all the figures like letters represent like parts.

A is a narrow upright frame, which serves to support the other parts. It is provided with anarm, B, attached to the back of the frame, near the upper part,having suitable bearings for the drivingshaft D to run upon. On this driving-shaft are two fast pulleys, P P, and

one loose pulley, P', to communicate the proper motions to the machine and for stopping it.

W' is a bevel-wheel fast on the end of the driving-shaft D,working into thebevel-wheel E,running upon and sustained by the bearing F, fast upon the upright frame A.

The spindle S is provided with a screwthread, T, working through the bevel-wheel E, having a corresponding female screw, and the upper end of thespindle slides through the bush G upon the arm H. This upper portion of the spindle has a feather, f, working into a corresponding groove in the bush G, by which arrangement the spindle is prevented from turning round, and receives, throughthe action of the bevel-wheel E upon the thread T,aver tical motion up or down, as required.

Into the lower part of the spindle S the dis engaging-tool L is fixed. This tool is of the exact diameter'of the straight part of the mandrel upon which it is to act, and is of asimilar external shape with the mandrel in reverse. At the bottom of the tool Lis acircular recess to fit the end of the mandrel. Upon the side of the tool is a groove or slot, ZZZ, Figs. IV and V, which runs straight and vertical a distance equal to the length of the slot in the mandrel, as shown at Z Z", Fig. V, and from this point the sl'ot Z gradually inclines from a perpendicular line, as shown in Fig. V, from M is a platform or rest upon the frame A, having an opening in the middle, as shown at O, Figs. II and III. This opening is circular at its throat, and the center of which circular part is directly under the center of the disengaging-tool L. Underneath the platform, and on either side of the opening'are two arms or brackets, P P, `which are made to correspond with the sides and circular part of the platform M. Amovable plate is-inserted into the platform ,around the upper interior edge of the platform, so as to be drawn in or out. This movable plate is seen at m m, Figs. II and III: The semicircular part of this movable plate is raised by a rim slightly above the surface of the platform, as seen at n u, Figs.. I and III, and it has a back piece, r, through which is a screw, s, for adjusting its position, and through it the position of the cone-mandrel which is to be placed upon it.

K is a guard and guide for holding straigh the mandrel and disengaging-tool, and it is adjustable up or downby means of the screw N, operating in a female screw in K, and passing through the arm M. When the cone-mandrel is taken out of the coiling-machine above referred to,the coil adheres tightly toit and must be disengaged, so as not to injure or alter the shape of the coil, and that part of the steel` plate which is in the slot of the mandrel must be either turned back or removed. To effect this double object is the business of this machine and ofthe disengaging-tool L. The cone-mam drel, with the coil attached,immediately on be ing removed from the eoiling-machine, is set perpendicularlyinto the semicircular space O ofthe platform M, the base of the cone resting upon the adjustable plate m, andthe mandrel and cone must be always so placed that the slot in the `mandrel will be exactly in line with the straight part` ofthe slot in the disenvgaging-tool L. To secure accuracy in this, a

small hole'is drilled in the side of the cone near its base, into which a small pin inserted in the center of the throat of the semicircular rim n n fits, the Whole being so placed that always when it meets the pin it will bring the slots if the mandrel and of the tooll L into the same lne. For the purpose of holding the mandrel steady, a raised'band or flange upon the man-v drel a short distance from the base o f the cone is made, and this lian ge fits into recesses on either side of the lower part of the platform M, near its contact with the arm l). The cone-mandrel being placed in the machine upon the sliding plate m m, with the slot of the mandrel and the lower part of the slot of the disengaging-tool L exactly in line,the tool L, being forced downward by the operation of pulley P upon the shaft D, forces the straight part of the mandrel through the cone iu a straight line until the slot is cleared of the steel plate, when that part of the steel plate which was in the slot of the mandrel meets the inclinedlpart of the slotZZ of the di-sengaging-tool L, andby this inclined part is either turned back out of the center of the coil or is broken off. The straight part of the mandrel is thus pushed through and disengaged from the cone, and the coil is then easily taken from the cone without injury and in a complete state for tempering and annealing.

What I claim as my invention inthe foregoing, and which I desire to secure by Letters Patent, is-

The peculiar construction of the disengaging-tool L and the manner of constructing the platform M,when operating in connection with spindle S,for detaching the coil in the manner herein described.

l?. G. GARDINER. Witnesses:

J. B. STAPLES, RICHARD VINNE.

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